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Nortriptyline and pituitary-thyroid function in affective disorder.

L Nordgren, C von Schéele

    Pharmacopsychiatria
    |March 1, 1981
    PubMed
    Summary
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    This study found no link between nortriptyline drug levels and patient outcomes in depression. Thyroid and prolactin levels in patients did not differ from controls and were unaffected by nortriptyline treatment.

    Area of Science:

    • Neuroscience
    • Endocrinology
    • Psychiatry

    Background:

    • Depressive illness is a complex condition with potential links to hormonal imbalances.
    • Thyroid hormones and pituitary hormones like TSH and prolactin are sometimes implicated in mood disorders.

    Purpose of the Study:

    • To investigate thyroid hormone, TSH, and prolactin levels in depressed out-patients.
    • To assess the impact of nortriptyline treatment on these hormone levels.
    • To explore correlations between nortriptyline concentrations, clinical outcomes, and side effects.

    Main Methods:

    • Studied 20 out-patients with depressive illness.
    • Measured thyroid hormones, basal and TRH-stimulated TSH, and prolactin before and during nortriptyline treatment.
    • Analyzed plasma concentrations of nortriptyline and its metabolite, 10-hydroxy-nortriptyline, at different dosages.

    Related Experiment Videos

    Main Results:

    • No correlations were found between clinical outcome/side effects and nortriptyline or 10-hydroxy-nortriptyline plasma concentrations.
    • Basal and stimulated hormone levels did not differentiate between healthy controls and patients with endogenous or exogenous depression when age was considered.
    • Nortriptyline treatment did not significantly alter serum hormone levels.

    Conclusions:

    • Nortriptyline's efficacy and side effects in depression are not directly correlated with its plasma concentrations.
    • Hormonal profiles (thyroid, TSH, prolactin) do not appear to distinguish subtypes of depression or be significantly affected by nortriptyline treatment in this cohort.